/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cn.hippo4j.rpc.connection;

import cn.hippo4j.rpc.discovery.ServerPort;

import java.io.Closeable;

/**
 * This applies to server-side connections
 * <p>
 * Represents a network request connection and provides IO layer support<br>
 * <p>
 * This is not a strict and stateless Connection interface, it contains the necessary
 * operations that should be done in the connection. It is more like integrating the
 * connection and the connection channel together, so creating {@link ServerConnection} is
 * very resource intensive, for which caching is recommended
 *
 * @since 2.0.0
 */
public interface ServerConnection extends Closeable {

    /**
     * Bind ports and process them
     */
    void bind(ServerPort port);

    /**
     * Gets the state of the connection, which is interpreted differently by different programs<br>
     * <p>
     * Server: The active connection indicates that the server has been started, is receiving ports,
     * and can obtain requests at any time. The inactive connection indicates that the server has been
     * shut down and the ports have been released
     *
     * @return Whether active
     */
    boolean isActive();

}
